Mjpg_Streamer 的移植
1. 移植mjpg-streamer
a.1 移植libjpeg
1 tar zxf libjpeg-turbo-1.2.1.tar.gz 2 cd libjpeg-turbo-1.2.1 3 ./configure --host=arm-linux --prefix=/work/projects1/mjpeg-stream/libjpeg-turbo-1.2.1/tmp 4 make 5 make install 6 cd tmp/lib 7 cp *so* /work/nfs_root/fs_mini_mdev_new/lib/ -d
注意:文件体统
视频使用的是fs_mini_mdev_new_auto_wifi_ap.tar.bz2,因为自己制作过文件系统,暂时使用的是自己的。
a.2 移植mjpg-streamer
tar zxf mjpg-streamer-r63.tar.gz
cd mjpg-streamer-r63
a.2.1修改所有的Makefile
vim Makefile //顶层
将:
CC = gcc
改为:
CC = arm-linux-gcc
cd plugins/input_gspcav1
vim Makefile
将:
CC = gcc
改为:
CC = arm-linux-gcc
cd plugins/input_testpicture
vim Makefile
将:
CC = gcc
改为:
CC = arm-linux-gcc
cd /plugins/input_uv
vim Makefile
将:
CC = gcc
改为:
CC = arm-linux-gcc
cd plugins/output_autofocus
vim Makefile
将:
CC = gcc
改为:
CC = arm-linux-gcc
cd plugins/output_file
vim Makefile
将:
CC = gcc
改为:
CC = arm-linux-gcc
cd plugins/output_http
vim Makefile
将:
CC = gcc
改为:
CC = arm-linux-gcc
也就是将plugins 目录下面的所有的子目录的Makefile 全部进行修改
a.2.2 plugins/input_uvc 里面 修改
cd plugins/input_uvc
vim Makefile
将:
CFLAGS += -O2 -DLINUX -D_GNU_SOURCE -Wall -shared -fPIC
修改为:
CFLAGS += -O2 -DLINUX -D_GNU_SOURCE -Wall -shared -fPIC -I /work/projects1/mjpeg-stream/libjpeg-turbo-1.2.1/tmp/include
添加的这个是编译libjpeg 库生成的头文件。
将:
input_uvc.so: $(OTHER_HEADERS) input_uvc.c v4l2uvc.lo jpeg_utils.lo dynctrl.lo
$(CC) $(CFLAGS) -ljpeg -o $@ input_uvc.c v4l2uvc.lo
jpeg_utils.lo dynctrl.lo
修改为:
input_uvc.so: $(OTHER_HEADERS) input_uvc.c v4l2uvc.lo jpeg_utils.lo dynctrl.lo
$(CC) $(CFLAGS) -ljpeg -L /work/projects1/mjpeg-stream/libjpeg-turbo-1.2.1/tmp/lib
-o $@ input_uvc.c v4l2uvc.lo jpeg_utils.lo dynctrl.lo
//添加了-L /work/projects1/mjpeg-stream/libjpeg-turbo-1.2.1/tmp/lib 指明库文件的位置
回到顶层目录:make 生成mjpg_streamer 这个应用程序和很多的.so 文件
cp mjpg_streamer /work/nfs_root/fs_mini_mdev_new/bin/
cp *so* /work/nfs_root/fs_mini_mdev_new/lib/ -d
a.3 使用
内核:
1.添加UVC
cp config_ok .config
make menuconfig
<*> Multimedia support --->
<*> Video For Linux
[*] Video capture adapters (NEW) --->
[*] V4L USB devices (NEW) --->
<*> USB Video Class (UVC)
执行: make uImage
// 因为使用的是百问网的制作的USB 摄像头,所以,必须按照第二课1.1.9 视频修改UVC 驱动,修改完在make uImage
将修改的好的uvc_video.c 和uvc_driver.c 拷贝到/linux-3.4.2/drivers/media/video/uvc 替换掉
// 因为百问网的摄像头的特殊性才需要修改,否则是不用修改的
// 配置内核,使其支持 USB 总线驱动,如下
Device Drivers --->
[*] USB support --->
{*} Support for Host-side USB
[*] USB device filesystem (DEPRECATED)
[*] USB device class-devices (DEPRECATED)
<*> OHCI HCD support
<*> USB Mass Storage support
[*] HID Devices --->
{*} Generic HID support
[*] /dev/hidraw raw HID device support
SCSI device support --->
<*> SCSI device support
[*] legacy /proc/scsi/ support
<*> SCSI disk support
<*> SCSI tape support
2.支持AR2917WIFI的:
make menuconfig
Symbol: ATH9K_HTC [=n]
Type : tristate
Prompt: Atheros HTC based wireless cards support
Defined at drivers/net/wireless/ath/ath9k/Kconfig:100
Depends on: NETDEVICES [=y] && WLAN [=y] && ATH_COMMON [=n] && USB [=y] && MAC80211 [=m]
Location:
-> Device Drivers
-> Network device support (NETDEVICES [=y])
-> Wireless LAN (WLAN [=y])
-> Atheros Wireless Cards (ATH_COMMON [=n])
根据上面的依赖,还需要对ATH_COMMON 和 MAC80211 进行设置
-> Networking support (NET [=y])
-> Wireless (WIRELESS [=y])
<*>cfg80211 - wireless configuration API
<*>Generic IEEE 802.11 Networking Stack (mac80211)
-> Device Drivers
-> Network device support (NETDEVICES [=y])
-> Wireless LAN (WLAN [=y])
-> Atheros Wireless Cards (ATH_COMMON [=y])
<*> Atheros HTC based wireless cards support
3.添加WIFI 固件
mkdir /work/nfs_root/fs_mini_mdev_new/lib/firmware
cp htc_9271.fw /work/nfs_root/fs_mini_mdev_new/lib/firmware
文件系统:
使用的是制作好的,包含众多WIFI应用程序的fs_mini_mdev_new_auto_wifi_ap.tar.bz2
运行:
二合一摄像头
mjpg_streamer -i "input_uvc.so -f 10 -r 320*240" -o "output_http.so -w www"
一般摄像头
mjpg_streamer -i "input_uvc.so -f 10 -r 320*240 -y" -o "output_http.so -w www"
二合一摄像头
mjpg_streamer -i "input_uvc.so -f 10 -r 640*480" -o "output_http.so -w www"
一般摄像头
mjpg_streamer -i "input_uvc.so -f 10 -r 320*240 -y" -o "output_http.so -w www"
在火狐浏览器上面执行:
http://202.193.53.83:8080/?action=stream
// 谷歌、360急速浏览器都是失败的,
mjpg_streamer -i "input_uvc.so -f 10 -r 320*240 -y" -o "output_http.so -w www"
-i : 指定输入的插件。可见指定了input_uvc.so 这个插件,作为输入的驱动。因为我们使用的是UVC摄像头。
-o :指定输出的插件。 output_http.so这个插件。
---------------------------------------------------------------
Help for input plugin..: UVC webcam grabber
---------------------------------------------------------------
The following parameters can be passed to this plugin:
[-d | --device ].......: video device to open (your camera)
[-r | --resolution ]...: the resolution of the video device,
can be one of the following strings:
QSIF QCIF CGA QVGA CIF VGA
SVGA XGA SXGA
or a custom value like the following
example: 640x480
[-f | --fps ]..........: frames per second
[-y | --yuv ]..........: enable YUYV format and disable MJPEG mode
[-q | --quality ]......: JPEG compression quality in percent
(activates YUYV format, disables MJPEG)
[-m | --minimum_size ].: drop frames smaller then this limit, useful
if the webcam produces small-sized garbage frames
may happen under low light conditions
[-n | --no_dynctrl ]...: do not initalize dynctrls of Linux-UVC driver
[-l | --led ]..........: switch the LED "on", "off", let it "blink" or leave
it up to the driver using the value "auto"